20 ILCS 2310/2310-555

To examine artificially constructed public swimming pools and prepare and enforce rules and regulations governing their construction, operation, and use to the end that they will be constructed and maintained in a sanitary manner; to inspect natural and semi-natural bathing places to determine conformance with Department's recommendation for operation and maintenance of those areas, and to have the authority to require closing of any area when that action is considered necessary to prevent possible spread of infection or disease.